Vol. 19 No. 3
Evaluation of fungicides, antibiotics and antagonists against Xanthomonas oryzae pv. oryzae under field condition
Author(s): B. SRINIVAS AND V. A. PATIL
Abstract: Xanthomonas oryzae pv. oryzae causes bacterial leaf blight, which is a serious rice disease. Plant disease control requires the use of agrochemicals. In order to do this, researchers investigated the effectiveness of fungicides, antibiotics and antagonists against Xoo in the field condition and found that two spray of Streptomycin sulphate 90% + Tetracycline hydrochloride 10% w/v + Copper oxychloride 50% WP at 500 ppm + 1.25% recorded with minimum disease intensity (16.27%) with maximum disease control (47.99%) followed by, Copper oxychloride 50% WP at 1.25%, Streptomycin sulphate 90% w/v + Tetracycline hydrochloride 10% w/v at 500 ppm,Copper hydroxide 53.8% DF at 1.65%, Streptomycin sulphate 15% w/v + Terramycin 5% w/v at 200 ppm, Pseudomonas fluorescens at 108 cfu/ml, Trifloxystrobin 25% + Tebuconazole 50% (75WG) at 0.03%, Kresoxim-methyl 50% SC at 0.05% and Bacillus subtilis at 108 cfu/ml. Similarly, significantly higher grain yield (10.08 kg plot-1) was obtained from Tetracycline hydrochloride 10% w/v + Copper oxychloride 50% WP at 500 ppm + 1.25% followed by Copper oxychloride 50% WP at 1.25%. The disease severity in Southern Gujarat has been devastated by the BLB infection. The goal of this study was to determine the best grain yield (6173 kg ha-1) and straw yield (7544 kg ha-1) with an effective management strategy for bacterial leaf blight disease in rice crop by employing antibiotics, fungicides and antagonists.
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